TY  - JOUR
A1  - Friedrich, Alwin
A1  - Grunewald, Karsten
A1  - Klinnert, Silke
A1  - Bechmann, Wolfgang
T1  - Thermogravimetric and differential thermal analytical investigations on sewage farm soil
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Jancke, Harald
A1  - Beetz, Silke
A1  - Bechmann, Wolfgang
T1  - Non-selective signal loss in the 13C CPMAS NMR spectra of soil organic matter : investigations of particle size fractions
N2  - In the CPMAS spectra of soil samples, the paramagnetic soil constituents partially discriminate against the Signal intensity of the 13C atoms.The aim of the study was to check to what extend the signal depression is selective to a certain kind of carbon species. A strong linear correlation between the detectability of carbon and the cube root of wt.% Fe was observed for both, the total signal and the signal of the carbon species as well. For a C:Fe ratio of 1,5 - 20 non selective signal loss caused by the iron particles dominates. Despite the high percentage of non-detectable carbon the 13C CPMAS spectra correctly reflect the relative composition of soil organic matter
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Beitz, Toralf
A1  - Bechmann, Wolfgang
A1  - Mitzner, Rolf
T1  - Investigations of reactions of selected Azaarenes with radicals in water, 2. Chlorine and Bromine radicals
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Beitz, Toralf
A1  - Bechmann, Wolfgang
A1  - Mitzner, Rolf
T1  - Investigations of reactions of selected Azaarenes with radicals in water, 1. Hydroxyl and sulfate radicals
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Beitz, Toralf
A1  - Bechmann, Wolfgang
A1  - Mitzner, Rolf
T1  - Investigation on the photoreactions of Nitrate and Nitrite ions with selected Azaarenes in water
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Grote, Matthias
A1  - Klinnert, Silke
A1  - Bechmann, Wolfgang
T1  - Comparison of degradation state and stability of different humic acids by means of chemolysis with tetramethylammonium hydroxide (TMAH)
Y1  - 2000
ER  -